Nyasha Chin'ombe1,2*
, Evans Chavhunduka2,3*
and Hilda T Matarira2,4 
1
University of Cape Town, Faculty of Health Sciences, Department of Clinical Laboratory Sciences, Division of Medical Virology, Observatory 7925, Cape Town, South Africa
2
University of Zimbabwe, Faculty of Health Sciences, Department of Chemical Pathology, PO Box A178 Avondale, Harare, Zimbabwe
3
University of Zimbabwe, Faculty of Veterinary Sciences, PO Box MP167 Mount Pleasant, Harare, Zimbabwe
4
Great Zimbabwe University, Box 1460, Masvingo, Zimbabwe